SEALS SUPPORTED MATERIALS FROM 4 TO 13 MIL IN THICKNESS. TEMPERATURE SETTING IS 100 DEGREES CELSIUS TO 300 DEGREES CELSIUS. WEIGHT - 3 LBS; HEATING BARS ARE POLYTETRAFLUOROETHYLENE COATED; HEATING BARS ARE 12 INCHES LONG AND 3/4 INCHES WIDE. COMES WITH 10 FOOT CORD. ALSO AVAILABLE WITH 220 VOLTS AND ADDITIONAL HEATING BAR LENGTHS ON SPECIAL ORDER.